PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM issued ll^^lVhi. Vjii^l) ^y 'A< SMITHSONIAN INSTITUTION U. S. NATIONAL MUSEUM Vol.92 Washington: 1942 No. 3149 NOTES AND NEW SPECIES OF MICROLEPIDOPTERA FROM WASHINGTON STATE By J. F. Gates Clarke In 1933, under the above title, I started a series of papers in which I proposed to deal with the microlepidopterous fauna of the State of Washington. Three of these papers have been published.^ This paper, the fourth, contains descriptions of nine new species and one new genus, as well as notes on other miscellaneous species. In addi- tion, four European species are recorded as new to North America. The drawings for this paper were made by Arthur D. Cushman, staff artist. Bureau of Entomology and Plant Quarantine. Family GELECHIIDAE ANACAMPSIS POPULELLA (Clerck) Phalaena populella Clerck, Icones Insectorum, pi. 11, fig. 5, 1760. E. I. Smith, Bureau of Entomology and Plant Quarantine, Seattle, Wash., submitted a series of this species for determination. Accom- panying the moths was a series of larvae and pupae. The larvae were collected on a species of Salix and the moths were reared from them. This appears to be the first record of the occurrence of this European species in North America. All specimens are in the United States National Museum. 1 Can. Ent., vol. 65, pp. 84-93, 1933. Can. Ent, vol. 66, pp. 171-181, 1934. Can. Ent., vol. 67, pp. 244-254, 1935. 468537—42 267 268 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 9- GNORIMOSCHEMA ARNICELLA, new species Plate 29, Figures 6, 6a ; Plate 32, Figxire 14 Antenna sordid white anniilated with blackish fuscous. Labial palpus sordid white shaded with gray on inner side of second seg- ment, and irrorated with fuscous outwardly. Head, thorax, and fore wing pale cinereous, lightly shaded with pale brown and pro- fusely, but finely, irrorated with fuscous. On the wing there are five blackish-fuscous spots, one at base of wing just inside costa, one on inner margin slightly farther out, one at one-third between lb and the cell, another between the bases of 9 and 10, and a larger lunate spot at end of cell; cilia ochreous white strongly irrorated with blackish fuscous. Hind wing light gray, darker apically; cilia pale yellowish fuscous. Legs pale cinereous irrorated with fuscous. Ab- domen cinereous, paler beneath. Male genitalm.—Upper arm of harpe almost straight, nearly as long as uncus and tegumen combined; lower arm short, stout. An- terior process of vinculum about as long as lower arm of harpe. Gnathos a rather weak hook. Uncus well developed, rounded. Aedeagus stout, moderately dilated basally, distally with a dorsal protuberance. Female genitalia.—Genital plate broad; ostium heart-shaped. Bursa copulatrix pear-shaped with a strong, slightly curved signum. Ductus bursae short, broad, with a narrow sclerotized ring before the ostium; inception of ductus seminalis at anterior edge of the sclerotized ring. Alar expanse, 14—15 mm. Type.—U.S.'NM. No. 56268. Type locality.—Kamiack Butte, Wliitman County, Wash., 3,000 feet. Food plant.—Arnica cordifolia Hook. Remarks.—Described from the type female (19-V-34, J. F. G. Clarke No. 5668) ; one female paratype, Newman Lake, Spokane County, Wash. (July 1915, G. K. Jennings) ; and one male paratype, Shasta Retreat, Siskiyou County, Calif. (August 16-23). One paratype is in the Carnegie Museum, Pittsburgh, Pa.; the other paratype is in the United States National Museum. The larva of this species is a leaf roller on the food plant. LITA PRINCEPS (Busck), new combination Gnorhnoschema princeps Busck, Proc. Ent. Soc. Washington, vol. 11, p. 175, 1909. The type of this species is in the United States National Museum. Although it is in poor condition, consisting of a fore and a hind wing, head without palpi, and two legs, it is easily recognizable as being a member of the genus Lita Treitschke. Vein 2 of the forewing is remote from 3, a character that distinguishes Lita from Gnorimoschema Busck. IVnCROLEPIDOPTERA FROM WASHINGTON STATE—CLARKE 269 In addition to the type, I have before me a series of eight specimens from Washington and Utah as follows: Washington: Pullman (23- IX-1925, J. F. G. Clarke) ; Wenatchee, 5 S $ (23-29-VIII-1929, A. Spuler). Utah: Eureka, $ (27-VIII-1911) and Stockton, 6 (29- VIII-1904), both collected by Tom Spalding. The venation of the Washington and Utah specimens agrees with the type, and the genitalia definitely place these specimens in Lita. In his paper on the restriction of the genus Gelechia ^ Busck re- tained this species in the genus Gnoriinoschema. He undoubtedly did this, despite the obviousness of the venation, because of the inade- quacy of the material before him. ARLA, new genus This genus is similar to Lita but differs from it in the extremely long antenna (thickened in the male), the long scaling from the uncus, the armed aedeagus, and the single weak signum. Genotype.—Aria tenuicornis, new species. ARLA TENUICORNIS, new species Plate 30, Figube 9 ; Plate 31, Ficxjees 10-lOb ; Plate 32, Figube 13 Antenna fuscous faintly annulated with gray. Labial palpus ochreous white strongly overlaid and irrorated with fuscous. Head luteous. Thorax and fore wing luteous profusely irrorated with fuscous, the surface of the wing appearing dull light brown. On the wing are three more or less well-defined fuscous spots, one between lb and the cell before one-third, another at the base of vein 10, and the third at the end of the cell ; cilia pale yellowish fuscous irrorated with fuscous. Hind wing fuscous; cilia pale yellowish fuscous. Legs oclireous white irrorated and overlaid with fuscous. Abdomen light fuscous above ; ochreous white, irrorated with fuscous, beneath. Male genitalia.—Upper arm of harpe very long, slender, dilated distally; lower arm long, slender, acutely pointed. Gnathos strong, sickle-shaped, with a prominent posterobasal protuberance. Uncus large, dilated posteriorly and edged with long scales. Vinculum with a well-developed, bifurcate posterior process with serrate edges and a long, bluntly pointed anterior process. Aedeagus long, slender, thickened and strongly armed at middle, and with a distolateral thorn. Female genitalia.—Ostium broad, funnel-shaped. Bursa copula- trix rather small, oval; signum a weakly sclerotized plate. Ductus posterior ; bursae long ; third sclerotized inception of ductus seminalis slightly posterior to middle of ductus bursae. Alar expanse, 17-23 mm. * Busck, A., Proc. U. S. Nat. Mus., vol. 86, p. 571, 1939. ; ;; 270 PROCEEDINGS OF THE NATIONAL MUSEUM vol.92 Type.—U.S.^M. No. 56269. Type locality.—Warwick, Klickitat County, Wash. Food plant.—Unknown, Remarks.—^Described from the type male (9-VI-1931, T. M. Clarke) and five male and five female paratypes as follows : Shelton, Mason County, Wash., 1 $ (20-VI-1931, J. F. G. Clarke No. 2700) Shasta Ketreat, Siskiyou County, Calif., 4 5 5,5 $ 9 (June 16-23, July 1-7). CHIONODES LOETAE, new species Plate 30, Figubes 8-8b ; Plate 31, Figure 12 Antenna blackish fuscous with faint ochreous-white annulations. Labial palpus ochreous white, more ochreous in brush, strongly irrorated with blackish fuscous outwardly and on third segment. Face and head pale gray brown. Thorax and fore wing rich choco- late brown with a purple iridescence (in some specimens the ground color is somewhat paler) ; apical fourth of wing almost solid black- ish fuscous; in the cell three blackish-fuscous spots in a line; on vein lb, at basal third, another similar spot (in most specimens the spots are pronounced but in some examples they are only faintly indicated) ; cilia pale fuscous with strong blackish-fuscous irrora- tions. Hind wing fuscous, cilia somewhat lighter. Legs ochreous white but the ground color almost obliterated by a strong blackish- fuscous suffusion. Male genitalia.—^Upper arm of harpe long, slender, acutely pointed lower arm very weak, slender, small. Gnathos a long, evenly curved hook. Uncus rather large. Aedeagus stout with short stalk; distal end strongly sclerotized. Female genitalia.—Ostium large, opening from the strongly sclerotized posterior portion of the ductus bursae ; ductus bursae with only a short, membranous, anterior section. Bursa copulatrix large, pear-shaped, with the ductus seminalis opening into the posterior end signum a strongly sclerotized, scobinate plate. Alar expanse, 17-22 mm. ry;?e.—U.S.N.M. No. 56270. Type locality.—Friday Harbor, San Juan County, Wash. Food plant.—Unknown. Remarks.—^Described from the type male (16-VII-1926, T. C. Kincaid) ; three male and two female paratypes as follows: Belling- ham (l^VIII-1930, J. F. G. Clarke No. 2943), $ ; Seattle (VI-27- (British no date or collector), 1901, O. B. Johnson ?), 5 ; Columbia; $ ; Bonneville, Clark County (16-Vin-1931, J. F. G. Clarke No. 2685), $ ; "British Columbia" (7-VIII-1905 ; no specific locality or collector) , 9 . Paratypes in the United States National Museum. ; MICROLEPIDOPTERA FROM WASHINGTON STATE—CLARKE 271 CHIONODES WHITMANELLA. new species Plate 30, Figures 7-7b Antennae dull ochreous white with narrow fuscous annulations. Labial palpus sordid white lightly irrorated with fuscous. Face and head sordid white with a suffusion of pale brown. Thorax and fore wing light yellowish brown. Thorax infuscated. Fore wing, especially toward tip, infuscated ; in cell, about middle, two blackish- fuscous spots, one before the other; on vein lb, slightly before basal third, a similar spot; cilia pale yellowish fuscous. Hind wing pale fuscous white, cilia pale yellowish fuscous. Legs ochreous white suf- fused and irrorated with fuscous. Abdomen pale brown suffused with fuscous beneath. Male genitalia.—Upper arm of harpe slender, strongly curved, acutely pointed, reaching slightly beyond midpoint of tegumen ; lower arm straight, slender, weak, somewhat shorter than upper arm. Gnathos very long, stout, curved. Uncus small. Vinculum with well- developed anterior process. Aedeagus long, slender, with a long stalk.